hunker down
A modified bovine surfactant extract that can be used as an intratracheal suspension for the prevention and treatment of neonatal respiratory distress syndrome.
A manufacturer of corsets.
(idiomatic) To take shelter; to prepare oneself for some eventuality; to focus on a task. / (idiomatic) To stubbornly hold to a position.
(topology) A knot that has a knot diagram in which, in traveling along the knot, one passes through intersections alternatingly: over, under, over, under, etc.
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DiQt（ディクト）
無料
★★★★★★★★★★
